Crusher



Nov. '3,1925.

, E. H. FRCKEY cnus'HER Filed Dee. 5, '1924 Patented Nev. 3, 1.925.'

u UNITED STA EDWARD H. raIcxnY, or sr. Louis, MISSOURI.

- cansnnn.

Application led December 5, 1924. Serial No. 754,206.

l l T all whom it may concer/n.: Be it knownthat I, EDWARD H.' FRIGKEY,a citizen of the-United States, and a resident of St. Louis, Missouri,have invented an Im- 5 provement in Crushers, of which the following isa specification. This invention 'relates to Crushers, and wir regard vtocertain more specific features to rrushers for such materials aslimestone, l0` shale, iron ore, coal, gypsum, asphalt rock and similarmaterials which may contain moist impurities such as clay or mud.

Among the-several objects of the invention maybe noted the provision ofa simple and rugged Crusher, the provision of means for preventingdetrimental clogging of such a Crusher and the provision of means .foreasily adjusting the relationship between f various elements of saidcrusher. Q-fl? The invention accordingly comprises the 'l' features ofconstruction,- combinations of elements, and arrangements of parts whichare exemplified in the structure hereinafter described, and the scope ofthe application '-5 of which will be indicated in the following claims.

In the accompanying drawings, in which is shown one of various possibleembodi ments of this invention,

-Fig. 1 is a right side elevation of the Fig. 2 is a front elevationsand Fi 3 is a longitudinal section taken on the line 3-3 of Fig. 2.

Similar reference characters indicate correspondin parts throughout theseveral views of t 1e drawings.

Referring no w to the drawings there isillustrated at 1 a framecomprised of side castings 3, a cover 5 and a hopper chute 7. Forwardlybolted at 9 between the two side castings 3, is a cross channel beam 11-(see Fig. 3). This channel beam 11 serves to tie the side castingstogether at the forward end of the crusher. Rearwardly a frame 13 servesthe same purpose. vThe frame 13 has its central opening normally closedby va door 15 which may be opened for purposes of inspection whenoccasion demands.

The cover 5, itself an assembly of component castings` serves to' closethe device and tie the end castings together at their.

upper portions.

The side castings 3, the frame 13 includ- -ing its door 15, and thecover 5 serve to enclose a rotating set of hammers 17 mounted betweendiscs 19. The disc faces are niachined to receive the hammers betweenthem and are provided with-through-bolts 21 for tightening the hammers.ther holes 23 in the discs permit adjustment of each 'set of hammers as.weer onsaid hammers takes place. The adjustment is radial sovthatas thehammers wear shorter, compensation.

may be permitted.

The discsand hammers are mounted upon a shaft 25 running cross-wise ofthe machine. This shaft is borne in ring-oiled bearings 27 at eachsideof the device. :The bearings'arecast with the end castings'and are ofgenerous proportions as is the whole machine. On the left end -of theshaft, and

outside of the machine is borne the fly-wheel 221), and on its right endthe driving pulley Cradled below the rotary hammers 17 are cage bars 33cast en-bloc. They are held in position by means of bolts 35andcage'liners 37. The liners are bolted to the side caste ings 3 andserve as end supports for the cage bars. They also protect the surfacesto which they are bolted from abrasion. These bars serve to permit onlymaterial which has been crushed down to a proper size to pass out of thebase of the machine.

At the ends of the hammer-disc assembly, or rotor, are placed end.liners 39. These are bolted to the end-castings 3 and cover 5 and serveas renewable safeguards against abrasion of said parts.

Forwardly of. the machine" are mounted the uprights 41 fastened to afoundation end to the machine by suitable means; and!- trussed.togetherby means of the crossmem- At their top, these uprights havemounted.

betweenthem a shaft 45, borne in adjustable earings 47. vThese bearingsare fastened to the 'upper ends of the uprights by suitable 'slides 49and rivets 51. Set screws 53 bring ',links are about twenty inches broadandthe 'by a suitable ruggedplateii 63. This platen 63 is pivoted to'theend castings 3 of the frame l by inean's of shaft 65 and backs thebreaker plates at tliepoint of impact. -It may be adjusted to differentrequired degrees of slope vof the' breaker plates, or to dillerentdegrees of wear in said meiiib'ers by4 means of the lateral -shaft 67''passing through slots' in I'ianges 68 of the platen and slots in theend castings. Outside. of the end castings-the shaft 67 is bolted ateach s lows:

end to side bars 69 which extend througli lugs 7l ot the end'castings.These side bars may be adjusted by means of nuts and lock nuts-7 3 sothat they may govern Vthe swing position of the platen 63 about itsshaft 65. The auxiliary shaft working in slots 'similar to the abovementioned ones, serves to hold the platen in position by clamping in'tension to the end castings.

The hammer shaft 25 is of course driven by means of pulley 3l and at arate such that the hammers have a linear speed of several thousand feetper minute in the di, rection shown by the curved arrow in Fig.`3.

The chained breaker plates areA slowly driven about four feet per minuteby means 'of a separate motor 77 and- Worm speed reducer 79, in thedirection shown by the straight arrow of Fig. 3. A cleaning scraper 8lkeeps the breaker plates freeiof dbris. x

The operation of the machine is as fol- Materia'l such as lump rock isfed into the hopper-7. Gravity carries it downward on the slopingbreaker plates into the paths of the rapidly rotating hammers I7.`-These hammers impact the lumpy material against the slowly movingbreaker plate chains 6l thereby breaking most of the material down to asize sinall enough to pass .thecage bars 33. That which lias'not beenbroken small enough can ot'pass the cage bars and consequently goesaround withl the hammers for'a second crushing. The liners 39 'protectthe lframe against wear. The breaker i lattes of course transmit theforce ofithe low given to them, to the backing platen 63. i

' lOne of, the purposes of moving the breaker plates is to provide meansfor auto-'. matically cleaning them. Heretofore, mud, clay or other softmaterial might and would gather on the stationary' plates just clear ofthe path of the liaiiimers, that is, just above them on the stationaryplates* This mateis. gradually broughtl into the pat'h ofthe rapidlypioving hammers and is; thereby scraped oll. The scraper 8 1fuilthersthis result. This scraper is of particular use when 'thebreaker plate is adjustedtofa position some distance fronrtlie pathofthe revolving hammers. This vadvantage is gained without sacrificingthe necessary -high relative velocity relationship between the hammersand breaker plate, in -so far as the breaker platesiniove at arelatively-slow speed.

In the drawings lthe hammer type., of Crusher. is illustrated. Theimprovements herein set forth apply with equaljforce' the variousfeatures of this invention will Abe clear without further`elaberation,and it.'

will be -secii that with the; apparatus hereiirf:

described, the several objects 'of ftli'e inven tion are achievednndother results attained.

As 'many changes could be. made 'in carryfing outthe above constructionwithout deadvantageous parting from the scope of the invention, it isintended that all matter contained in thef the impact of blows of saidelementson material being cruslied,vand a said chain at the pointofiinpact.

'2. In a Crusher of the .type described, the` platen backing combinationof rotary crushingelenicnts, 'an

endless cliain of .movable impact plates cooperating therewith andadapted to receive the' impact of blows of said elements on` materialbeing crushed, :iiiv adjustable'platen hacking said` chain at the pointof impact, and a combination ofi-.ifotafry crushing elements, an

scraper cooperatingwitli' said `chain Ato-clean it. 3. In a erusliprol'rthe type described, the4 endless chain ofifiioyable impact platescooperating therewith and adaptedt'o receive the'4 impact of blows -ofsaid elements on material being crushed, an adjustableplatenbacking'j'said chain' at the point ofjiii act, andv a scrapervcooperating with sailfc ain to clean it beyond the impacting" area.

4.- In a Crusher of the type described, the

combination. of rotary 'crushing'elements an endless Chain ofli'jelatively l slowly moving iso -efodess chain of relatvey slowlymoving impact plates cooperating therewith and adopted to receive theimpact of blows o Said elements on materielbengg ol'ushe., and

m adjustable paben backing said chain at the point ot' impact. y G. En aext-usher, the combination of crushing' `elements opeletiufj et erelatively high "velocity, an endless chain ot' impact pla/eescooperating therewith and adapted 'to receive the impact of ows of saidelements on material being; crushed end moving et e Het ativey towvelocity its. the same direction et cto/te the point of cooperation, anda pieten bocking seid chain of plates at seid point of eooperaton.

7. n a crushel', 'the 'combination oit' erusing elements operating at oreatvey high. veoety, an endless chain of impact plates cooperatingtheewith and adopted. 'to feceive 'the impact of blowsof said eements onmateria being crushed, and moving ato relativey low veocty in the/Samedecton o at the point of cooperation, en adjustebe platen boeking saidchain'o" petes at said point of cooperation, and o, scrape? for saidchain of plates adapted to clean ehem oftel: they have passed said pointof cooperation.

in testimony whereof, have sgmel my neme to thsvspecicaton this 3d dayof @ecemoerQ 1924.

EDWARD' et. Femme

